(Monogenea, Gastrocotylidae) Leads to a Better Understanding of the Systematics of Pseudaxine and Related Genera
Parasite 27, 50 (2020) Ó C. Bouguerche et al., published by EDP Sciences, 2020 https://doi.org/10.1051/parasite/2020046 urn:lsid:zoobank.org:pub:7589B476-E0EB-4614-8BA1-64F8CD0A1BB2 Available online at: www.parasite-journal.org RESEARCH ARTICLE OPEN ACCESS No vagina, one vagina, or multiple vaginae? An integrative study of Pseudaxine trachuri (Monogenea, Gastrocotylidae) leads to a better understanding of the systematics of Pseudaxine and related genera Chahinez Bouguerche1, Fadila Tazerouti1, Delphine Gey2,3, and Jean-Lou Justine4,* 1 Université des Sciences et de la Technologie Houari Boumediene, Faculté des Sciences Biologiques, Laboratoire de Biodiversité et Environnement: Interactions – Génomes, BP 32, El Alia, Bab Ezzouar, 16111 Alger, Algérie 2 Service de Systématique Moléculaire, UMS 2700 CNRS, Muséum National d’Histoire Naturelle, Sorbonne Universités, 43 Rue Cuvier, CP 26, 75231 Paris Cedex 05, France 3 UMR7245 MCAM, Muséum National d’Histoire Naturelle, 61, Rue Buffon, CP52, 75231 Paris Cedex 05, France 4 Institut Systématique Évolution Biodiversité (ISYEB), Muséum National d’Histoire Naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, 57 Rue Cuvier, CP 51, 75231 Paris Cedex 05, France Received 27 May 2020, Accepted 24 July 2020, Published online 18 August 2020 Abstract – The presence/absence and number of vaginae is a major characteristic for the systematics of the Monogenea. Three gastrocotylid genera share similar morphology and anatomy but are distinguished by this character: Pseudaxine Parona & Perugia, 1890 has no vagina, Allogastrocotyle Nasir & Fuentes Zambrano, 1983 has two vaginae, and Pseudaxinoides Lebedev, 1968 has multiple vaginae. In the course of a study of Pseudaxine trachuri Parona & Perugia 1890, we found specimens with structures resembling “multiple vaginae”; we compared them with specimens without vaginae in terms of both morphology and molecular characterisitics (COI barcode), and found that they belonged to the same species.
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